Selective value actuated accumulator and control



Aug. 15, 1950 N s N ETAL 2,518,810

SELECTIVE VALUE ACTUATED ACCUMULATOR AND CONTROL Filed March 18, 1949 8 Sheets-Sheet 1 1950 M. G. NELSEN ETAL 2,518,810

SELECTIVE VALUE ACTUATED ACCUMULATOR AND CONTROL Filed March 18, 1949 8 Sheets-Sheet 2 l w W 44 I g I 102 Aug. 15, 1950 M. G. NELSEN ETAL SELECTIVE VALUE ACTUATED ACCUMULATOR AND CONTROL Filed March 18, 1949 s Sheets-Sheet s 145 136' J 143 154" 157V J 159% I 203 g' g ,L r207 89 2261 91 1 20g I 1591 i a! 2 0 4 600. 1305 65" 2221.. ZJZL 211% s- 5, 1950 M. G. NELSEN L 2,518,810

SELECTIVE VALUE ACTUATED ACCUMULATOR AND CONTROL Filed March 18,- 1949 8 Sheets-Sheet 4 Jam/z 2377a Mam %emeffiazm ggg g- 5 M. e. NELSEN ETAL 2,518,810

SELECTIVE VALUE ACTUATED ACCUMULATOR AND CONTROL Filed March 18, 1949 38 s Sheets-Sheet 7 1 147 16] Z 14- 5 15 145% 143 16 I 1361 15'4- Patented Aug. 15, 1950 SELECTIVE VALUE ACTUATED ACCUMU- LATOR AND "CONTROL Marvin G. Nelsen, Skokie, and Thedore J. Obszarny, Chicago, Ill., assignors to Guardian Eleotric Manufacturing 00., Chicago, 111., a corporation of Illinois Application March 18, 1949, Serial N 0. 82,258

22 Claims.

I his invention relates to accumulators and particularly to accumulators which will add credits when a coin or coins are inserted in a coin chute, Or when a particular switch is closed, and will subtract credits as merchandise, services or renditions are dispensed, or other operations occur, or some predetermined time period elapses.

It is an object of the invention to provide improved accumulators.

It is another object of the invention to provide improved accumulators which are at least partially operated by a rotating electrical motor and which add credits very rapidly.

It is a further object Of the invention to provide an accumulator which is extremel compact and which is faster in operation than present accumulators.

It is an additional object of the invention to provide an improved arrangement of drive and gears for motor driven accumulators to maintain high torque for the add mechanism and, at the same time, to maintain compactness.

I It is a further object of the invention to provide accumulators which are essentially foolproof and jam-proof.

It is also an object of the invention to provide a multi-coin or multi-switch accumulator which is essentially fool-proof, is relatively simple in construction and which is compact.

It is again an "object of the invention to provide a multi-coin or multi-switch accumulator which prevents adding of credits or obtaining of the goods, services or result desired if a coin hangs or sticks on one of the coin switches, or if a similar switch remains closed for any reason.

It is an additional object of the invention to prevent accumulator solenoid coils from burning out if a coin hangs or sticks on one of the coin switches, or if a similar switch remains closed for any reason.

It is a further object of the invention to insure that the last credit be usable in an accumulator.

Another object of the invention is to provide an electrical accumulator which prevents making selections of services, goods, or the like while the add mechanism is being operated.

It is also an object of the invention to provide effective anti-jackpotting in an accumulator, that is, to prevent continuous using of or adding of credits if certain switches remain closed when they should normally be open.

While the invention is described with respect to coin operated mechanisms, it will be apparent that any means may be used to close the equivalent of the coin switches and, therefore, that the invention may be applied to other uses, such as business or computing machines.

With these and other objects in view, the invention consists in the construction, arrangement and combination of the various parts of our device whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in the claims, and illustrated in the accompanying drawings, wherein:

Figure 1 is a top plan View of the mechanism constructed in accordance with one embodiment of the invention. 1

Figure 2 is a diagrammatic showing of 5, 1i. and 25 cent coin switches utilized in practicing the invention.

Figure 3 is a sectional view, with parts thereof broken away, taken on line 3-3 of Figure 1.

Figure e is a sectional view of the apparatus, taken on line 4-4 of Figure 1.

Figure 5 is a diagrammatic wiring diagram utilized in connection with the mechanism shown in Figure 1.

Figure 6 is a top plan View of the mechanism constructed in accordance with a second embodi ment of the invention.

Figure 7 is a diagrammatic view of the .5, l0 and 25 cent coin chutes used with the invention.

Figure 8 is a sectional View, with parts thereof broken away, taken on line 8-8 of Figure 6.

Figure 9 is a sectional View of the apparatus taken on line ?9 of Figure 6.

Figure 10 is a diagrammatic wiring diagram utilized with the mechanism shown in Figure 6.

Figure 11 is a partial wiring diagram illustrating the operation when a nickel is utilized in the mechanism shown in Figure l or 6.

Figure 12 is a wiring diagram showing the circuit established when a quarter is used in the mechanisms of Figures 1 and 6.

Figure 13 is a wiring diagram showing the circuits energized when a dime is utilized in the mechanism shown in Figure 1.

Figure '14 is a wiring diagram showing the circuits energized when a dime is utilized in the mechanism shown in Figure 6; and

Figure 15 is a diagrammatic wiring diagram of a simplified phonograph control which may be connected to both the mechanisms shown in Figures 1 and 6.

Description of Figures 1 to 6 inclusive and 15 Referring specifically to Figures 1 to 6 inclusive and 15, for a detailed description of the first embodiment of the invention, 1 I designates generally a base plate upon which the coin changing mechanism is mounted, a cover (not shown) being provided for the mechanism.

While the description of the invention is on the assumption that niclrels, dimes and quarters are used, itis obvious thatcoins of any denomination which are a multiple of any chosen unit may be utilized. Furthermore, the invention is not limited to coin operated apparatus as credits may be accumulated and subtracted by the operation of certain switches by any manual means, such as in a business machine.

As best shown in Figures 1 and 5, a motor i2 is mounted on the base H and dime and quarter solenoids I3 and I4 respectively are also mounted on the base II, preferably in a horizontal position. An add solenoid, sometimes referred to as the nickel solenoid, is shown at I5 and is preferably mounted vertically on the base II. A subtract solenoid I5 is mounted beside the add solenoid I5 andalso is preferably disposed vertically on the base II. I A motor 12 is provided with a shaft i! which is driven through suitable gearing (not shown) and the outer end of the shaft 11 is S p orted by a lug I8 mounted on the base I].

The shaft I'I rotates a gear I-B which is best shown in "Figure 3 and it will be noted that the gear has two sets of four oppositely spaced teeth 20, with smooth portions therebetween. A collar 25I is provided on the shaft H to properly space the gear IS. The shaft ll also drives a cam member 22 having two oppositely disposed depressions 25 in its surface, the remainder of the surface, shown at 24, being smooth. The cam is also provided with a pair of horizontally projecting pins 23, for a purpose hereinafter described.

The gear l9, when rotated, is adapted to hav its teeth 20 engage with teeth .30 of a gear 26 mounted on a shaft 21, which is supported in a vertical supporting member 29- secured to the base II. The motor 12 is so controlled that gear I9 always stops with a fiat portion facing the gear 26 and out of engagement therewith. A second gear 28 is also rotatably carried on the shaft 2] and is provided with teeth 28a. A common ball detent engages with the teeth 30 of gear 26 to retain the gears 26 and 28 in any position in which they are set. The gears 26 and 28 are rigidly connected together by a collar MB.

A switch generally indicated at 3! is mounted on a supporting member 50 which is secured to the base II. "The switch 3! includes a contact 32 and a contact 33 mounted in spaced apart relation .on a movable resilient switch arm 34. A contact 35., which is adapted to engage with contact '32, is mounted on a relatively fixed resilient arm 3,6. A contact 31 adapted to engage with contact 33 is mountedon a movable resilient arm 38. At the end of the arm 38 is a V-shaped portion 39, which is adapted to either ride on the surface 24 of the cam 22, or to drop into the depressions 25 thereof, depending upon its position.

Another switch 4| is mounted on the base II and includes a movable arm 43 having a V- shaped end .44 thereon. A projection 42 is provided on the side of the gear 26 facing the switch 4| and when the projection 42 engages with the V-shaped portion 44 of the switch arm 43, the switch arm .43 is moved downwardly as viewed in Fig The selector switch 4i also includes azsw charm 45,- The mova le wit m as a contact 5I thereon which is adapted to en- 4 gage with a contact 5Ia mounted on the switch arm 45.

The add or five cent solenoid I5 includes an armature 55 which is preferably mounted at the top of the solenoid I5. An arm 56 extends horizontally from the armature '55 and terminates in a blade 5'! which is adapted to engage with the teeth 280. on the gear 28. It is obvious, therefore, that as the armature 55 is attracted and returned to its upper position by means of a spring 6.9, that each operation will move the gear 28 the equivalent distance of one tooth. The gear 26 may be rotated because the teeth 20 are out'of engagement therewith at times when the add solenoid is operating.

The solenoid I5 also has a switch mounted on the top thereof which includes a movable switch arm 58 and a relatively fixed switch arm 59. The movable switch arm 58113-5 a contact 65 thereon which is adapted to engage with a contact .61 .on the relatively fixed arm '59, v

The subtractor cancel solenoid I6 is also provided with an .armature 62 and is constructed in all respects identically with the add solenoid I5. A horizontally extending arm 63 is secured to the armature 6.2 and terminates in .a blade .64 which is adapted to engage the teeth 28a of the gear 28 on an opposite side of the center of rotation thereof from the blade 51; The spring 69 is positioned over a projection II on member .29 and tends to retain both the blades 5f! and .64 and the armatures 55 and 62 in their upward position. It will be obvious that each time the subtract solenoid J5v operates that the .gear 28, as well as gear 26, will be moved a distance equal to the space of one tooth 28a.

The gear 28 is provided with a projection 53 which is on the side thereof facing the vertical plates 29. A tab .54 is bent inwardly from the plate .29 and cooperates with the projection 53 to provide a stop for the gear 28 for preventing further rotation .of gear 28 when credits corresponding to the number of teeth on gear 28 have been credited.

A switch is mounted on the top of the subtract solenoid I6 and includes a movable switch arm 55 which is operated by the armature 62 and a relatively fixed switch arm 66. A contact 61 is provided on the relatively fixed switch arm and is adapted to engage with a contact 68 on the movable switch arm 65.

If desired, another set of contacts 60a and BIa may be provided on the add solenoid I5 for a purpose to be described, While the contacts 69a and 51a are not shown in Figure 1 of the .drawmes, th y a e s wn di ram l in Fi u es 5 and 11. 7

Referring ;now to the ten .cent solenoid I3, it includes a long armature 'II having a metal washer I2 at its outer end. A felt pad 13 is preferably secured to the end of the frame VI] to absorb the shock of the washer I2 striking thereagainst. A frame member 14 supports the solenoid I3 and a spring 75 is disposed between the washer "I2 and the end of the frame member 14, whereby the armature II is normally retained in its extended position as .shown in Figure 1.

A switch generally indicated by the numeral 16 is associated with the solenoid I3 and is adapted to be operated thereby. The switch I6 includes a rotatable switch operating member 77 having a roller 18 with which the washer I2 is adapted to engage. The switch operating member TI is pivoted at 19 to the body portion of the switch and is provided with a pair of outwardly extending ears BI. A flexible blade 82 is rigidly secured at one end thereof to an insulating switch body 80 and is adapted to be engaged by the rotatable switch operating member 11 at its free end, since the free end overlies the member '11. The flexible switch member 8'! is also secured to the insulated body of the switch 39 and has a free end 84 to which is connected a hairpin spring 85. The spring 85 also connects with the free end of the flexible arm 82, so that a snap acting movement is imparted to the free end of the switch arm 81, in a manner well understood in the art. The movable switch arm 81 is provided with a contact 89 which is adapted to engage with a contact 9| on a relatively fixed switch arm 88, which is also secured to the body 80 of the switch. It will be clear, therefore, that as the washer I2 rotates the member 17 on its inward stroke, contacts 89 and 9| will be engaged momentarily and, as the washer 72 rotates the member I1 on its outer stroke, the contacts 89 and SI will again be momentarily engaged.

A second switch 92 is adapted to be operated by the ten cent solenoid I3 and is disposed at the end thereof opposite the washer 12. The switch comprises a movable switch arm 93 and a fixed flexible switch arm 94. The fixed switch arm 94 has a contact 95 provided thereon which; is adapted to engage with a contact 33 on the movable switch arm 93. A pin 91 is adapted to be forced outwardly when the armature TI is at the extreme attracted position. The pin 9! engages a buttton 98 to momentarily move the switch arm 93 to open contacts 95 and 96. As soon as the armature II begins to return to the unattracted position, the pin 9'. retracts and the contacts 95 and 96 are again closed.

Referring now to the twenty five cent solenoid I4, it is to be noted that it is mounted between two frame members IOI and I 02 which are secured to the base I I. Preferably the frame members I Ill and I02 are made in one piece.

The solenoid I4 has an armature I33 therein which extends a considerable distance from one side of the solenoid and has an extension I04 protruding slightly from the other end of the solenoid. A spring I05 is disposed between a washer I03 and a collar I01, the latter being secured to the frame I9I to retain the armature I03 normally in the extended position, shown in Figure 1, with the portion I04 in the retracted position. A member I09 secured to the base II provides a stop for the outward movement of the armature I 03.

A switch generally indicated at I39 is adapted to be operated by the protruding portion I04 of armature I03. The switch I39 includes two flexible movable arms III and H2 and two relatively fixed flexible arms H3 and I I4. A contact I I5 is provided on arm I II and is adapted to engage with a contact H5 on arm H2. Arm H3 is provided with a contact II! which is adapted to engage with a contact I2! on arm H2. Arm H2 is also provided with a contact H3 which is adapted to engage with a contact I I9 on arm I I4.

As best shown in Figures 1 and i, a latch in the form of a bell crank lever is generally indicated by the numeral I22 and has two angularly extending arms I23 and I24. The lever I22 is pivoted at I25 at the bisection of the arms I23 and I24. A latching hool-z I23 is provided at the extremity of the arm I24 and is adapted to be engaged by the pins 23 on cam 22. The end of the arm I23 is disposed in such a position by a spring I21 so that it normally rests in contact all) with the upper surface of the armature I 03 of solenoid I4. However, when the armature I03 is retracted, the spring I21 pulls the arm I23 downwardly and when the armature I03 is released, it will stop short of the stop member I09 because the end of the arm I 23 will block its complete return. The bell crank lever I22 will stay in such position with the armature I03 blocked until one of the pins 23 is rotated by the motor I2 rotating cam 22 one half a revolution to engage the portion I 26 of the bell crank lever I22 and raise the end of the arm I23. The spring I 05 will then force the armature I03 against the stop member I08.

As will be more completely described, the extension I04 of the armature I03 will make and break certain contacts of switch I09 when the armature is in its completely retracted position, and will make and break certain contacts of the switch member I09 when it is in its partially retracted position because of being blocked by the latch I22.

Referring specifically to Figure 2 for a description of the coin chutes and switches, the twenty-five cent coin chute is designated at ISI. A projection I32 extends into the coin chute I through an aperture I33 in the side thereof and connects with a movable flexible switch of a twenty-five cent coin switch I35. The coin switch I35 also includes a relatively flexible arm I36 which has a contact 537 thereon adapted to engage with a contact I38 when a, twenty-five cent piece is inserted in the chute and contacts the projection I32. It is to be understood that the description and drawings of the coin switches are merely diagrammatic and that a, standard coin switch and slug ejector is normally utilized.

Referring to the five cent coin switch, the chute is shown at I39. A projection MI extends into the chute through an aperture 542 in the side thereof and is connected to a movable switch arm I43 of a flve cent switch 594. The switch I44 also includes a fixed flexible arm I45 having a contact I46 thereon adapted to engage with a contact I41 on the movable switch arm I43. When a nickel is inserted in the chute I33 it will engage the projection I4I momentarily and close contacts I46 and I4! for a short period of time.

The ten cent chute is shown at I43. A projection I49 extends through an aperture I5! in the side of the chute I48 and is connected to a movable flexible switch arm I52 of a ten cent switch I53. The switch I53 also includes an arm I54 having a contact I55 thereon adapted to gage with a contact I53 on the movable s itch arm 552. When a ten cent piece is inserted in the chute I48, it will move the projection and momentarilv close contacts I55 and Referring now to Figures 5, ll, 12, 13 and 15 for a detailed description of the circuits for the above mechanism. The incoming power lines for the mechanism are shown at I5! and I58 in Figure 5. These lines are connected to the circuits shown in Figure 15, which is matic drawing of a typical phonogr ph selec" tion circuit used with pay phonogra circuit is illustrated merely by way of e in order to make the description of th tion complete and forms no part of invention. Another set of leads nd connected to the circuit, as shown in s 5 and 15. The purpose of these leads w .a clear as the description progresses.

The phonograph selection circuit includes a 110 volt A. C. line shown at 'L--l, lie- 2 having a line switch I62 therein. The lines L-I and L2 are connected with the primary of a transformer It l which primary is shown at 553. Two secondary coils I65 and I66 are provided, the larger coil supplying energy to the power lines E51 and I53, the voltage being for example, 18 volts. The smaller secondary H6 supplies 6 volt power to the phonograph light circuit. An incandescent lamp i6? is connected by a line from the output of the secondary coil I56 by a conductor I10, which light is illuminated at the time when selections may be made. The light is also connected through a conductor 93 to the lead I58 and the lamp I61 will be illuminated and line I93 will have power therein whenever master switch contacts 5 Ia and contacts iii! and 5! associated with the five cent relay l5 are closed. The circuit from the line I59 is shown in Figure 5 and comprises the contact Ell, ti conductor 242, closed contacts 5|, 5Ia, conductor 2 normally closed contacts 3'2, 35 of the cam operated switch 3! and conductors 269 and 225 back to lead I58, which is connected to the opposite side of the secondary I65 of the trans former I64.

The phonograph selection circuit is shown with only three selector buttons and solenoids, but it is obvious that any number of these may be in the circuit. The selector'button switches are shown generally at 168,159 and ill. The respective solenoids controlled by these switches are shown at I85, I81 and I89.

The solenoid 58 includes two bridging contacts H2 and 913 which are suitably connected together and which are adapted to bridge fixed contacts I14 and I15 respectively, whenever a selection is made by moving the movable contacts I12 and I13.

The selection switch I 69 is identical with switch I58 and includes movable bridging contacts I15 and I11 adapted to bridge contacts I18 and I19 respectively.

The selection switch IN is also identical and includes bridging contacts I8I and E32 adapted to bridge contacts I83 and I84 respectively.

Solenoid I85 is connected to contact M5 by, a conductor I86, solenoid I81 is connected to contact I19 by conductor I38 and solenoid we is connected to contact I84 by a conductor lfii. A common conductor I92 from power line E51 connects the three contacts 185, I81 and H39, so that a circuit may be completed therethrough.

A conductor 9 connects contacts I14 and H5 of switch I68 to line I93. A conductor I95 likewise connects contacts I18 and I19 of switch 59 to line I93. A similar conductor I95 connects contacts I83 and Hi l to line I93.

A common lead I81 connects contacts H4, H8 and I83 of the three coin selection switches to conductor I6! which, it will be noted by reference to Figure 5, is connected to one sideof the cancel solenoid it. The other side of the cancel solenoid I5 is connected to power line E51, so that each time one of the selector switches is operated the cancel solenoid will be energized to cancel one credit by rotation of gear 23. The circuit will be completed from conductor E59, conductor I93, through the lower closed contacts of whatever selector switch has been closed, through one of the conductors I94, H5 or tile, through upper closed contacts of the same selector switch, and through conductor 55! to the cancel coil which is connected to the line I51 through conductor 208 to energize the same.

Operation of Figures 1 to 5, 11, 12, 15: and 15 Referring to the operation of Figures 1 to 5, 11, 152, 13 and 15, the sequence of operations will first be described when a nickel is placed in the machine. As best shown in Figures 5 and 11, power from a source marked S in Figure 11 enters the circuit through the lines i5 1 and 853. When contacts MS and M1 are closed by passage of a nickel through the chute its, a circuit is established from line E51 through conductor 2&3, momentarily closed contacts M6, M1, conductors I43, 2% and 23 3 to a terminal 295 of the add solenoid l5, thence through terminal 266 of the add solenoid thence through conductors 291 and 2% back to line E56 thus completing the circuit and energizing the solenoid i5. Energization oi the solenoid l5 attracts armature 55 and rotates the gear wheels 26 and 28 the distance of one notch. The rotation of the gear wheel 2tmoves the projection 2 away from the V -shaped portion id of switch arm 33, thus closing master switch contacts 5 l, 5! This supplies power to the phonograph selector circuit shown in Figure 15 as described above. When one selection is made, the cancel solenoid it is operated, the gears 26 and are turned in the opposite direction and the master switch contacts 52, tile are again opened so that no further selections may be made.

The contacts ti, 58a and 63a are normally closed, but are opened at the time the solenoid i5 is energized. Opening of the contacts 5 is merely prevents the motor it from being energized at the same time the add solenoid i5 is energized to prevent jamming of the mecha nism at this time. The opening of contacts 39, iii prevents making selections at the moment that the add solenoid i5 is being operated so that adding a credit and cancelling a credit cannot be effected at the same time, If the solenoids l5 and it were permitted to operate at the same time, the gears 25 and 28 would not'move.

Furthermore, if a nickel sticks or for any reason contacts Hit, It! remain closed, gears .26 and as would be prevented from rotating by blade 51 and selector contacts 55, Elm would remain closed. However, no selections may be made because contacts fill, 65 would remain open.

The contacts'fil, E38 operated by the subtract solenoid it also momentarily close when a selection is made and these contacts are connected. in parallel with the phonograph "elector master switch having contacts iii, Eta, to insure, on the last credit, that the circuit to the selector mechanism is maintained in energised condition so that the mechanism may complete a selection. In case of a sluggish solenoid orslowness in operation of other mechanism, the closing of contacts 5?, 63 momentarily will always insure that the last credit is usable.

As stated, if a nickel sticks on the nickel coin switch and holds'contacts l te, it! closed, contacts 6t, 62 on the add solenoid l5 will remain open so that no selection may be made regardess of what coins might be utilized. Furthermore, contacts iiila'and filo operated by solenoid l5 will also be open so that it will be impossible to energize the motor 22, whereby a quarter cannot establish credits on the machine. As will be explained hereinafter, a quarter must operate motor iii in this embodiment-of the invention in order to establish credits. Also, a dime will not add credits because, as will be explained, the add solenoid I must be energized twice in succession when a dime is used, but it already would be' energized and cannot be de-energized until the nickel coin switch I 44 is cleared.

The operation of the system when a dime is inserted in the dime chute I48 is best shown in Figures 5 and 13. A dime closes coin switch contacts I55 and I55 momentarily. Ihe closing of these contacts establishes a circuit starting from the source of power marked S in Figure 13 through line I5'I which, as stated above, is connected to one side of the transformer I64, thence through conductor 203 to conductor I52 through closed contacts I55, I56 through conductors I54 and 2I5 to terminal 2I6 on the ten cent solenoid I3 thence through terminal 22I, conductor 208 and back to line I58 which is con nected to the other side of the transformer I54. It is to be noted that the ten cent solenoid I3 has two coils therein, one of greater resistance shown at I3a, for example, of 35 ohms, and one of less resistance, shown at I3b for example of 7 ohms. Since contacts 95 and 96 associated with the ten cent solenoid I3 are normally closed, the two coils I3a and I31) are normally connected to line I51, I58 so that both are energized when the ten cent coin switch contacts I55, I56 are closed. The coil I3b receives its energy through conductors 2I5, 2I'I, 2I8 and terminal 2I9 of solenoid I3, the terminal 22! being a common terminal for both the coils I3a and 13b.

As will be apparent from the description of the ten cent solenoid I3 and, as shown in Figure 1, when the ten cent solenoid is at its limit in attracted position, the contacts 95 and '96 are opened. If the dime does not stick and hold contacts I 55, I56 closed, both coils I3a and I3?) are de-energized after having been energized, contacts 95 and 96 close and the armature II of solenoid I3 returns to the position shown in Fig-- ure 1. If, however, a coin sticks and holds contacts I55 and I56 closed, the sequence will be that both coils I3a and I312 will be energized and the armature II will move to its fully attracted position, thus opening contacts 95 and 95. Contacts 95 and 96 will cut out coil I31) of less resistance but coil I3a of greater resistance will remain energized and will hold the armature II in the fully attracted position. The purpose of cutting out the coil I3b of low resistanc in case of a coin sticking and maintaining contacts I55, I56 closed, is to prevent burning up of the solenoid I3.

Upon energization ofthe solenoid I3 in the manner just described and the moving of the armature 'II to its attracted position, the washer 12 secured to the end of the armature II will strike the roller 78 of switch 80 and rotate the pivoted member "I? about the pivot 79, thus raising the flexible arm 82. Raising of the arm 82 will snap the arm 84 to the opposite position to that shown in Figure 1, so that contacts 89 and 5| will be momentarily closed. As the washer I2 dis-engages from the roller "I8 in the movement of the armature to its fully attracted position, the flexible arm 82 will again assume a flat position and the arm 84 will snap to the position shown in Figure l and open contacts 89 and SI. As soon as the solenoid I3 is de-energized by the ten cent piece passing through the coin chute and the opening of contacts I55, I56 on the coin switch, the armature II will be returned to the position shown in Figure 1 by the spring I5. As the washer 12 again engages and disengages from the roller I8 of pivoted member 71, the some seequence of operations as just described will occur and contacts 89, SI will again be closed and then opened. Each time the contacts 89, 9I are closed and opened, the add solenoid I5 will be energized. Since the contacts 89, SI are opened and closed twice each time a dime closes contacts I55, I56 of the coin switch, two impulses will be conveyed to the add solenoid I5 so that, as explained above, the armature 55 of solenoid I5 will be moved twice and gear wheels 25 and 28 will be moved a distance equivalent to two notches. When the contacts and are closed, a circuit is established to energize the add solenoid I5, starting with line I51, which is connected to one side of the transformer I64, thence through conductors 225 and 223, through closed contacts 89, 9|, through conductor 2G4 and terminal 205, through the add solenoid IE to terminal 286, thence through conductors 25! and 298 back to lead I58, which is connected to the other side of the transformer I64.

As explained above, when the gear wheels 26 and 28 are rotated, the master switch contacts 5 I, 5 I a are closed and, if only ten cents is inserted in the mechanism, two selections may be made before the button 42 will again engage the portion 44 of switch arm 63 of the master switch, to again open contacts 5i, 5m and prevent any further selections from being made. It is obvious that as many dimes as desired within the limit of the number of notches on gears 26 and 2'5 may be inserted and the same thing is true of nickels or quarters. When the limit of the notches on the gears 23 and 25 is reache the mechanism, the stop 53 on gear 28 will engage with the tab 54 on frame number 29, and no additional credits may be added.

Referring now to the operation of the mechanism, when a quarter is utilized, which operation is best shown in Figures 1, 5 and 12, the quarter in its passage through chute I3I momentarily closes contacts I31, I38 to first energize the quarter solenoid I4. A circuit is established to energize the quarter solenoid I4 from the source of power, again marked S in Figure 12, starting at line I51, which is connected to one side of transformer I5 3, thence through conductors 253 and I36, through contacts Iii-"I, 38 of the quarter switch, thence through conductors I34 and 226 to terminal 227 of the quarter solenoid I4, through the quarter solenoid I i to terminal 228 thereon, thence through conductor 258 back to lead I58, which is connected to the other side of the transformer I55. When the quarter solenoid is thus energized, the armature is moved to its attracted position and, as shown in Figure 4, spring I2! rotates the bell crank lever I22 to a position wherein the arm I22 thereof blooks the armature I53 and prevents spring I65 from returning it to its unattracted position, shown in Figure 1. At the same time the latching projection I26 of arm I24. of the bell crank lever I22 is moved to the left, as viewed in Figure l.

The first credit is made when a quarter is used by the add solenoid E5 in the following manner: when the contacts I3i, 53? of the quarter switch are closed and the quarter solenoid I4 has its armature I53 in the fully attracted position, contacts I I8, II9 of switch I59 are momentarily closed as described above. A circuit is therefore established from one side of the transformer I64 through lead 51, conductor 225, closed contacts H5, H8, closed contacts H8, II9, through conductors 222 and 264 to terminal 265 of a solenoid I5, through the solenoid I5 to terminal 206, and

for adding credits to- 11 thence through conductors 251 and 258 to the other side of the line I58, which is connected to the other side of the transformer I54. Since contacts IIS, I59 are normally immediately opened after the quarter passes through the coin chute and opens contacts I31, I38, no furtherenergiZation of the add solenoid I will take place at this time.

Movement of the armature I93 of the quarter solenoid I4 also effects energization of the motor I2 in the following manner: as described above, when the armature I53 is moved to its attracted position, it engages with the button I I I of switch and, on the initial impulse, when the armature I83 is moved to its fully attracted position, contacts IE5, H5 are closed, contacts In, I2I are opened and contacts H8 and H9 are closed. As soon as contacts I31, I33 of the quarter coin switch open, the quarter solenoid I4 is de-energized and the armature I53 moves a short distance away from its fully attracted position, but is stopped by the arm I22. When this occurs, contacts H5, remain closed, contacts II I, I2| are closed contacts H8, H9 are opened.

When the armature where it is stopped by arm I22, which occurs when a quarter has normally passed through the quarter chute and momentarily closed contacts lei, I38, the motor I2 is energized by the following circuits: starting with line I57, which is connected to one side of transformer Hit, the circuit includes conductor 225, closed contacts I I5, H5, closed contacts II'I I'Z'I, conductor 232 to terminal 23I of the motor I2, through the motor and terminal 229 thereof, thence through conductor 208, back to line I58 which is connected to the other side of the transformer I54. As soon as the. motor I2 starts to rotate, it rotates gear I9 and also rotates the cam 22. The projection 39 on switch arm 38 of switch 3| is thus moved out of the depression 25 on the cam 22' and rides on the high portion of the cam 24. This closes contacts 33, 3'1 and opens contacts 32, 35. While the contacts 32, are open, no selections may be made even though master switch contacts 5!, a are closed. This is because the circuit from one side of the line I5! is broken to lead I59 going through the selector circuit. After the cam 22 has rotated 180 the contacts 32, 35 are closed, and a circuit to the selector mechanism is established from line I51, which is connected to one side of the transformer I54, and one side of the selector circuit through conductors 225 and ate, closed contacts 32, 35, through conductor 2! I, closed contacts 5i, 5l'a, conductor 2 I2, closed contacts 5!}, BI and conductor I59 to the other side of the transformer I54 through the selector circuit, when one of the push-buttons is operated.

Before the motor has quite completed a halfrevolution of the cam 22, one of the pins 23 thereon engages the projection I26 on bell crank lever I22 and rotates arm I23 to the position where it no longer blocks armature I83 of solenoid i l. The armature I53, therefore, returns to its completely de-e-nergized position shown in Figure 1 and contacts H5, H5 of switch I59 areopened. However, since contacts 33., 31 are still closed, the motor continues to be energized until switch arm 38 drops into depression 25 on cam 22 to open the contacts 33, 31 and thus de-energize the motor circuit.

One reasonfor the arrangement of the switch I55 is to prevent energization of the motor, adding of credits or making selections, if a quarter sticks and holds contacts I37, I38 closed. With contacts I31, 1'38 closed the armature I03 of I93 is in the position solenoid I4 remains in its completely energized position with contacts III', I2I open so that no circuit to motor I2 may be completed. In addition, add solenoid I5 remains energized and no credits may be added by any coin. Also contacts 50, BI remain open and no selections may be made.

Also by having the contacts 33, 31 and H5, I I6 and HI in series with the motor, de-energization of the motor is. insured even though. one or the other set of contacts might not open at the proper time.

It is. obvious that as the. gear I9 rotates a half revolution, the four teeth 20 on one side. thereof will rotate gears 26 and 28 for a distance equivalent to four teeth, thus establishing four credits. Master switch contacts 5I', 5m, have already been closed by the first credit, so that selections may be made. The gear I9 is arranged so itwill always stop with the teeth 20 disengaged from the gear 25, so that credits may be established by a nickel or a dime and so that the cancel solenoid may subtract credits as selections are made.

From the foregoing it will be apparent that the sequence of operations when a quarter is used in the mechanism is that thefirst credit is added to the mechanism by operating the add solenoid I5, which also incidentally closes the master switch contacts 5!, 5Ia. The contacts 55 and ti of the add solenoid i5, however, prevent making a selection at the particular instant that. the solenoid I5 is energized. Immediately thereafter the motor starts in operation and four more credits are added by the gear I9. However, since the contacts 32, 35-are open at. this time no selections can be made, even though master switch contacts 5|, 5Ia are closed, until the cam .22 rotates a sufiicient distanceto Stop the motor and close contacts 32, 35. As selections are made, the cancel solenoid I6 is energized by each selection, as described above, to subtract one credit by rotation of the gears 26, 2-8.

Description of Figures 6 to 10 inclusive,

Referring now to Figures 6 to 10 inclusive, l4 and 15 for a description of the second embodiment of the invention, it is first to be noted that the mechanismand the circuits are substantially identical with the first'enibodiment of the invention with the exception that the ten cent solenoid operates the motor to establish two credits, instead of the solenoid itself twice opening and closing a switch.

Referring now to Figures 6,..8 and 9, the mechanism is mounted on a base plate 24 I and includes a motor 242 attached thereto; A ten cent solenoid 243, a quarter solenoid 244 and an add solenoid 245, which is also the nickel solenoid, and a subtract solenoid 245 are also mounted on the base 24l'. The motor drives a shaft 241 through suitable gearing (not-shown). Mounted on the shaft 24! in spaced relation are small gears 248 and 249-, which will be described in detail hereinafter. Also mounted on the shaft 247 for rotation therewith is a cam member 250 having two sets of pins 25] extending therethrough and projecting outwardly on each side of the cam member 250. The cam member 25!] is provided with two depressions 2-52 and two smooth circular portions 253.

A driving member 254 is slid'ably mounted on the shaft 247' and the shaft I41 provides a bearing for rotation of the member 254. Themembe'r 2541s connected by'a collar 255 to the small gears 298 and 249, which likewise are connected together by suitable means and are rotatable on the shaft 247. A slot 255 is provided between the collar 254 and the gear 249 for a purpose hereinafter described. A cooperating driving member 259 is secured to the shaft 241 and rotates therewith. It has axial faces which are adapted to engage with axial faces of the member 25 2 so that the member 254 is rotated on the shaft 22'! and member 255 is rotated by motor 242. The members 254 and 258 provide a driving connection between them, and permit the collar 254 to be shifted axially of the shaft 247, to a limited extent.

Two large gears 25? and 258 are mounted on a bearing 259, which bearing 259 is supported on a vertical plate 26E secured to the base 24!. A collar 292 maintains the gears 251 and 258 in spaced relation and also fastens the two gears together so that they rotate simultaneously on the bearing 2'59. The gear 258 is positioned so that it will be rotated by the smaller gears 248 and 2 39 depending upon their position, as will be apparent as the description proceeds. A collar 263 maintains the gears 25'! and 258 in properly spaced relation with respect to the supporting plate 29L A pin 29-; projects from one side of the gear 25? facing the plate 29! and a button or projection 295 is disposed on the gear on the side which faces the motor 242. The pin 294 and a bent tab 266 extending from plate 299 provide a stop for the rotation of the gears 252' and 259. A well known spring and ball detent are provided for maintaining the gears 29? and 258 in the position in which they are placed by the mechanism.

As best shown in Figure 8, a pin or rod 25? extends from the plate 26! towards the motor 242.

A motor switch 298 is mounted on a vertical plate 259 which is secured to the base 24!. The motor switch 298, as best shown in Figures 9 and 10, includes a movable flexible switch arm 27! having a V-shaped end 2'72 thereon. The switch 268 also includes a relatively stiff flexible switch arm 279 and a second movable switch arm 214. Contacts 215 and 278 are provided on the movable switch arm 229 and are adapted to engage with contacts 221 and 278 on switch arms 275 and 2H, respectively.

A selector circuit switch is shown at 279 and includes a relatively fixed flexible arm 28! and a movable flexible arm 282 having a V-shaped end member 285, which is adapted to be engaged by the button 295 on gear 258 at certain specified times. The arm 28! has a contact 283 thereon adapted to engage with a contact 284 on the switch arm 282.

The add or nickel solenoid 245 includes an armature 289 and has switches 28? and 298 adapted to be operated thereby. A switch 28? comprises a movable switch arm 289 and a relatively fixed switch arm 29!. The Switch 29! includes a movable switch arm 299 and a relatively fixed switch arm 29!. The switch 288 includes a movable switch arm 292 and a relatively fixed switch arm 293. A contact 294 is provided on switch arm 289 and is adapted to engage with a contact 295 on switch arm 29!. A contact 299 is provided on switch arm 292 and is adapted to engage with a contact 29'! on switch arm 295. A rigid bar 298, which is bent to provide a vertically extending blade 299, is secured to the armature 289 of solenoid 245. The vertical blade 299 extends through a suitable aperture in the vertical plate 26! and is adapted to engage with teeth 39! on gear 251. Gear 259 is provided with teeth 392 with which teeth or 399 of small gears 248 and 249, respectively, are adapted to engage during certain operations of the machine, which will be described hereinafter.

The subtract solenoid 246 operates armature 995. Secured to the armature 395 is a rigid memher 396 having a vertical blade 39! bent therefrom which corresponds to the blade 299 of the member 298 operated by armature 286. The blade 99'! extends through a suitable aperture in the plate 25! and is adapted to engage with the teeth of gear 25'! on an opposite side of the bearing 259 from the member 299.

It will be clear, therefore, that when the armature 285 is attracted, the blade 299 will rotate the gear 25"! a distance equivalent to one notch 39! in one direction to add credits and, as the armature 995 is attracted, the blade 39! will engage teeth of gear 25! to rotate in the opposite direction and subtract credits. The gears 25? and 259 rotate together as stated above.

A switch 398 is operated by the armature 395 or" subtract solenoid 245 and comprises a movable switch arm 399 and a relatively fixed switch arm 3H. A contact 3E2 is provided on the switch arm 999- and is adapted to engage with a contact M9 on switch arm 9!!.

A ten cent solenoid switch 3!4 is adapted to be operated by the solenoid 249 and comprises a relatively fixed flexible switch arm 3!5, a relatively fixed flexible switch arm 9H6 and a movable flexible switch arm 9H. The switch arm 3i5 is provided with two contacts (H8 and 319 adapted to engage with contacts 32! and 322 which are provided on arms 3|9 and 3H, respectively. A button 329 is provided on the end of the switch arm 3H.

A twenty-five cent solenoid switch is provided at and is adapted to be operated by the solenoid 299. The switch comprises flexible switch arms 32A, 325, S29 and 32?. A button provided on the end of the switch arm 224. Switch arm 324 is also provided with a contact which is adapted to engage with a contact 93! on switch arm 329. A contact 833 is provided on switch arm 925 and is adapted to engage with a cantact on switch arm 329. A contact 399 on switch arm 326 is adapted to engage with a contact 989 on switch arm Referring again to the ten cent solenoid 2953, it is provided with an armature 395 which extends outwardly a short distance from one end thereof as shown at A. spring 937, which is disposed between a washer 939 and ring 939, surrounds the armature 335 and tends to maintain the armature in unattracted position, as shown in Figure 6.

A stop extending upwardly from the plate 245 is shown at 3M and in the inactive position of the apparatus, the spring 932' forces the end of the armature 395 against the stop 34!. It is to be noted that all of the parts and the switches are shown in their normally inactive position in all of the figures.

A rigid arm 352 is secured to the washer and has one end thereof extending into the slot formed between the gear 249 and the slidable collar The arm is provided with an aperture 9-23, through which the rod or pin extends, so as to guide the arm 942 in its movement. It will be apparent that as the washer 998 is moved by armature or solenoid 243,

the collar il -E l and gears 248: and 259 will be shifted. When the armature 335 is in its inactive position, the gear 2 353, which has two sets of four teeth 3G3 thereon, with, smooth portions therebetween, will be in alignment with the gear 258. When the armature 3-35 is in its attracted or latched position, the gear 2% having two sets of two teeth thereon, with smooth spaces therebetween, will be aligned with gear 258-. Themethd of latching the armature 335- will be. described hereinafter,

The quarter solenoid 212d. has an armature S lt therewith projecting a considerable distance from one end thereof and slightly from the other end th reof, as shown at 345. A spring tends to maintain. the: armature in its unattracted position and is disposed between a washer ll and a washer The end of the armature is, therefore, normally held in engagement with the stopv 345, which also provides a stop for armature Two bell crank levers 3%" and 35H are pivoted upon shaft 352 extending from the plate 269. fhe bell crank levers 3-59 and 35! are maintained in spaced relation by a collar 3553-. The bell crank levers and are independently rotatable about the pivot or shaft 3552. Only one hell lever 349 is shown. in detail in Figure 9, since both of the crank levers are identical in shape and function. The bell crank lever 349 includes one arm wpich extends in such a position that it s top of armature but when armatore is attracted, a springSSS. rotates the arm 3 2;? to a position where it prevents the return of armature to its unattracted' position when -olenoid is de-energized The-bell crank lever also includes an arm 35% having a latching projection thereon, which is adapted to be engaged by ti: pins 255 on cam. 259 at certain points in the rotation of said cam. The purpose or" the latch mechanisms will become apparent as the description proceeds.

eferring' now to Figures 7 and 11), for a description of the coin chutes and switches, it will be noted that these are identical with the chutes and switches described with respect tothe first embodiment of the invention. The nickel coin chute is shown at and a nickel is adaptedto operate a switch having a movable switch arm and a switch arm 86 l The coin is adapt" ed to engage a projection on switch arm 359 which extends into the chute 35%. When the projection 352 is moved, a contact 353 on arm: 359 is adapted to engage with a contact 364 on switch arm 5365.

The ten cent coin chute is shown at 36-5 and a dime is adapted to operate a switch 365 having a movable switch arm 2%; and a relatively fixed switch arm 3E3. The switch arm 35? is provided With a projection 359 which extends intothe coin chute 35d and is adapted to be moved by the passage of a coin. The switch arm 33? has a contact Bil which is adapted to engage with a cow tact on switch arm 368 when projection 3653 oved by a coin. The twenty-five cent coin chute is shown at 333 and a quarter is adapted to operate a switch 31d having a movable switch mm 375 and a relatively fixed switch arm Elli. The movable switch arm 3?:5 has a projection thereon extending into the coin chute 352 and adapted to be moved by the passage of a coin therethrcugh. Acontact 318 is rovided on the switch arm 3'55 and is adapted to engage with a contact 3 3% when projection fill is moved by a coin.

Operation of Figares 6 to 10 inclusive, i an'd 15 In c escribithe operation of the second embodiment of the invention, it is first to be noted that the operation of. the mechanism when a nickel or a quarter used is exactly the same as described with respect to the first embodiment of the invention and the diagrams shown in Figures l1 and 12 may be referred to for clarity. However, new numerals have been given to the complete wiring diagram of Figure 10 and the description will be made following those numerals. Furthermore, the selector circuit shown. in Figure 15 is exactly the same regardless of which of the embodiments is utilized. As shown in Figures 10 and 14, therefore, the source of power has been marked 5 and the leads therefrom have been given numerals i and IE8, Likewise, the leads from the selector circuit tothe remainder of the circuit shown in Figure 110 have been given numerals 59 and 56!. In View of the above it is believed that it will be unnecessary to again describe in detail the operation of the selector circuit shown in Figure 15, as to its-relationship with the wiring diagram of Figure 10.

L a nickel is in" rted inithe coin chute 35?, the following operations take place and the following circuits are established. Power is supplied through lead through conductor 38 5, through closed contact 363, 35d of the nickel switch 3&8, tlxough conductors 332 and 333 to terminal 384 of the solenoid 24-5,. through the solenoid 2-45 to tel-min .585 thereonthcnce throughicondoctors andttl back to lead lol.

Energization of the solenoid 2&5 attractsarma! ture 288 and moves gear Zfil adistance equivalent to one notch thereof. Gear 258 also :moves. The small gears 258 and 2529 always come to. rest-in a position where the smooth portions thereof face the gear 258 do not obstruct the rotation of gears 25.8 or 251.

When the add solenoid 245 is energized=,. contacts 29 295 and 29', 293i momentarily open. Opening of contacts 284, 295 prevent any selec'- tion being made while the nickel solenoid 245 operates. Opening of contacts 29%, 291 prevents operation of the motor 242 While the add solenoid 245 is energized.

As soon as the gear 258 is rotated, the button 265 is moved and switch arm 282 is depressed and closes contacts 283, v284. This establishesthe selector circuit in the following manner: from lead 558, through conductors 3'8! 39!, 392, 393, through normally closed contacts 215, 'ZTLconcluctor 4H, normally closed contacts .294; 295, conductors 395, 395, through closed contacts 283, 28-4, through conductors .397 and 3-98 to lead 59 and, thence back to the other side of the line 42-51;, when avselector button is pushed.

It will be apparent that as many nickels may be inserted in the machine up to its capacity, which is determined. by a number of teeth on the gear 251'. The stop members .265 and 266 wi1l prevent the making of more selections than there are teeth. Also if a nickel sticks on the nickelcoin switch and maintains the contacts 363 and 3 closed, the add solenoid 245 will remain energized, but no selections may be made and motor 242 may not be energized because contacts 2:94 2.95 and 295, 291 which are operated :by the nickel solenoid 2&5, remain open.

Credits are cancelled by energization of the cancel solenoid 2% in exactly the same manner as setforth with respect to the-first embodiment of the invention. Power is supplied to the cancel solenoid from lead I51, to terminal 388, through the cancel solenoid 246, thence through lead I8! and back to the other side of the transformer I 84 when a selection is made by pushing one of the selector buttons. The closing of contacts 312, 3I3, insures that the last credit is usable on the last cancel step.

If a dime is inserted in the dime chute 385, the following operations and circuits are established. Power is supplied from lead I58, through conductors 38!, closed contacts 31!, 312 of the dime switch 366, conductor 399 to terminal 43I of the dime solenoid 243, through terminal 492, conductors 403 and 318 back to lead I51. The dime solenoid 243 is, therefore, energized and the armature 335 thereof is moved to its fully attracted postion. When this occurs, contacts 3!!) and 322 associated with the dime solenoid are closed and contacts 3I8, 32! are momentarily opened. If a coin does not stick, solenoid 243 is almost immediately deenergized, but in the meantime bell crank lever 349 has been rotated by spring 356, so that arm 343 thereof will block the return of the armature 335 to its fully unattracted position. In this position both contacts 3I9, 322 and 3I8, 32! will remain closed.

At the same time that the armature 335 is shifted to its latched position, arm 342 will slide collar 254 and gears 248 and 249 on the main motor shaft 241, so that gear 249 which has two sets of two teeth 304 thereon will be aligned with gear 258.

The following circuit is then set up to energize motor 242; from line I51, through conductors 381, 483, 499 and 408 to terminal 481 of the motor 242, through the motor 242, through terminal 408 thereof, conductor 405, normally closed contacts 296, 291 on the add solenoid, through conductors 404 and 408, through closed contacts 3I8, 32! and closed contacts 3I9, 322, through conductors 3I1, 39! and 38! back to line I58. This will start rotation of the motor, which in turn rotates the cam 250 and the gear 249. As the gear 249 rotates, only two credits will be added since the gear 258 will be moved the equivalent of the space of two teeth by the two teeth 304 on gear 249. The motor will stop when it has rotated the gear 249 one half revolution, where-- upon it comes to rest again with a flat portion thereof facing gear 258. As soon as the gear 258 is rotated the selector switch contacts 283, 284 close and the circuit is in condition for making selections as described above with respect to the live cent solenoid operation.

However, as the cam 258 rotates and raises arm 21!, contacts 215, 218 of the motor switch are closed and contacts 215, 211 are open. contacts 2'55, 211 are open, no selections may be made since these contacts are in series with contacts 283, 284 of the selector switch associated with gear 258. As described with respect to the operation of the nickel solenoid, contacts 215, 211 form a. part of the selector circuit and if they are open no selections may be made.

As the motor rotates the cam 250, one of the pins 25! strikes the latching projection 355 of bell crank lever 349 and rotates it about its pivot 352, so that the spring 331 will return armature 335 of the dime solenoid 243 to its fully una tracted position against the stop 34!. This will I open contacts 3I9 and 322, contacts 3I8, 32! remaining closed. However the motor will not stop because contacts 218, 218 are in series with contacts 3I9, 322 and the following circuit will be maintained to operate the motor until the switch While arm 21! drops into one of the notches 252 on cam 250 to open contacts 216, 218. From line I51, through conductors 381, 403, 499 and 498 to terminal 401, through motor 242 to terminal 488, through conductor 485, normally closed contacts 296, 291, conductors 404, M5 and 4I5, through closed contacts 21 6, 218, through conductors 393, 392, 39! and 38! back to line 558.

Cancellation of credits takes place in the same manner as described above.

If a dime sticks on the dime switch and maintains contacts 31!, 312 closed, solenoid 243 maintains armatur 335 in its fully attracted position with the result that contacts 358, 32! remain open. Since it is necessary that contacts 3I8, 32! be closed to complete the circuit for starting the motor it is obvious that the motor will not operate if a dime sticks and maintains contacts 31!, 312 closed.

When the armature is returned to its fully unattracted position in the normal operation of the machine, the collar 254 and gears 248, 249 will again be shifted to the position shown in Figure 10, with the smooth part of gear 248 facing gear 258.

If a quarter is inserted in the quarter chute 313 the following operations and circuits take place; it again being pointed out that the operations and circuits are substantiall identical with that described with respect to the first embodiment of the invention. A circuit is established to energize the twenty-five cent solenoid 244 starting from line I58, through conductor 38!, closed contacts 318, 319, conductor 4I2 to terminal 4l3, through solenoid 244 to terminal 4 I 9, through conductors 499, 403 and 381 to the other side of the line I51. Solenoid 244 is, therefore, energized and armature 344 is moved to its fully attracted position. Bell crank lever 35! will be moved to block return of the armature 844, in the same manner as described with respect to the ten cent solenoid 243,

When the twenty-five cent solenoid is energized and the armature 344 thereof is in the fully attracted position, contacts 329, 31.5 and contacts 338, 334 are closed and contacts 333 are open. Closing of contacts 330, 334 energize the nickel or add solenoid 245 to add one credit by operating the armature thereof and rotating gear 251. The add solenoid 245 is energized in the following manner: from line I51, through conductor 381 and 388 to terminal 385, through add solenoid 245 to terminal 384, through conductors 383, 420, through closed contacts 339, 334, closed contacts 329, 33! and conductors 324, 392, 99! and 38! to the other side of line I58.

As soon as the quarter has passed through the chute 313 and opened contacts 318, 339, solenoid 244 is de-energized, but armature 344 i blocked by bell crank lever 35!. When this occurs, contacts 329, 33! and contacts 332, 333 are closed and contacts 338, 334 are open. The following circuits are, therefore, established to energize motor 242. From line I51, through conductors 381, 403, 409 and 498, to terminal 491 of the motor, through the motor 242 to terminal 496, through conductor 495, through closed contacts 295, 291, through conductors 484 and 4M, through closed contacts 332, 333 and 329, 33!, through conductors 392, 39! and 38! back to line I58.

As the motor continues to rotate, four credits will be added by gear 248, since it will move gear 258 the distance equivalent to four teeth. Therefore, a total of five credits is credited by the mechanism when a quarter is inserted. The gear 248 obtain the above advantages.

Iii *will stop when it has completed one-half revolution and a smooth surface thereof will be facing but not obstructing movement of ears 258.

As described with respect to the operation of 'themechanism when a dime is inserted, no selections may be made While the motor is rotating because contacts 215-, 2i? are open. Furthermore, as the motor rotates cam 256, one of the pins 25! will first unlatch the armature 344 so that spring 346 will again force it against stop 34 i. This will open contacts 323 and 33 i, but the motor will continue to rotate because contacts 329, 33! are in parallel with the motor switch contacts 216, 218, which are still closed. and remain closed until switch arm 21! drops into one of the depressions 252 in earn 255). This again insures that if one 101 the other of these sets of contacts do not open for some reason the motor will not continue to rotate and add credits.

The selector switch and cancel switch operate in the same manner as described above with respect to the other coins.

If a quarter sticks and contacts 318, 319 remain closed, the motor cannot start operating because the quarter solenoid 2 54 will remain in its fully attracted p sition with contacts 332, 333 open. These contacts must be closed to establish a circuit to start the motor when a ouarteris used. Furthermore, the add solenoid 2&5 will remain energized and contacts 29 i, 285 and 296, 29?

"will remain open. Therefore, it is additionally "impossible to make selections and furthermore,

no credits will be given by either inserting a nickel or a dime, since the nickel solenoid 245 will not re-operate and because contacts 294, 295 must be "closed for the motor 242 to operate by the inanism and circiuts. therefore, adequately prevent jackpotting. In other words, it is impossible to continue to obtain credits or make selections if a ,nickel or a quarter sticks or ii the contacts of the nickel or the quarter switches or the quivalent thereof remain closed for any reason.

I ,The purpose of the arrangement of the gears 19 in the first embodiment and 248 and 249 in the second embodiment is to obtain gears which are as small as possible to provide maximum torque and sti l have the gears operate only one- 'hal'f a revolution per cycle. The purpose of providing four teeth on the gears is and 248 is to When holding small diame ers it is possible to place two sets of four teeth on the gear but not two sets of five teeth. Therefore, the add or nickel solenoid is utilized to place one credit on the machine when a quarter is inserted.

From the foregoing it will be apparent that we have provided improved accumulator devices and. circuits which prevent jackpotting, are very fast in adding and subtracting credits and which are extremely accurate.

Although we have herein shown and described 'a preferred embodiment of our invention, manifestly it'is capab e of modificafion and rearrangement of parts without departing from the spirit and scope thereof. We do not, therefore, wish to be understood as limiting this invention to the precise embodiment herein disclosed, except as it may be so limited by the appended claims.

We claim:

1. Accumulator apparatus comprising credit storing means, a source of power, a first switch, means for operating said credit storing means to add one credit thereto when said first switch is closed, a second switch, a motor, means providing a driving connection between said 'motor and the credit storing means, a circuit starting the motor when said second switch is closed, a motor switch connected between the source of power and the motor for stopping the motor when it has operated the credit storing means to add a predetermined number of credits of a greater number than one, means for cancelling credits from said credit storing means, a third switch and means for closing the third switch when any credits are stored in the credit storing means and for opening the third switch when no credits are stored therein.

2. Accumulator apparatus comprising credit storing means, a source of power, a first switch, means for operating said credit storing means to add one credit thereto when said first switch is closed, a second switch, a motor, means providing a driving connection between said motor and the credit storing means, a circuit starting the motor when said second switch is closed, a motor switch connected between the source of power and the motor for stopping the motor when it has operated the credit storing means to add a predetermined number of credits of a greater number than one, means for cancelling credits from said credit storing means, a third switch, means for closing the third switch when an credits are stored in the credit storing means and for opening the third switch when no credits are stored therein, a fourth switch and means for opening said fourth switch while said motor is energized.

3. Accumulator apparatus comprising credit storing means, a source of power, a first switch, means for operating said credit storing means to add one credit thereto when said first switch is closed, a second switch, a motor, means providing a driving connection between said motor and the credit storing means, a circuit starting the motor when said second switch is closed, a motor switch connected between the source of powerand the motor for stopping the motor when it has operated the credit storing means to add a, predetermined number of credits of a greater number than one, means for cancelling credits from said cred-it storing means, a third switch, means for closing the third switch when any credits are stored in the credit storing means and for opening the third switch when no credits are stored therein, a fifth switch, and means for opening said fifth switch while said operating means for adding one credit is active.

4. Accumulator apparatus comprising credit storing means, a source of power, a first switch, means for operating said credit storing means 'to add one credit thereto when said first switch is closed, a second switch, a motor, means providing a driving connection between said motor and the credit storing means, a circuit starting the motor when said second switch is closed, a motor switch connected between the source of power and the motor for stopping the motor when it has operated the credit storing means to add a predetermined number of credits of a greater number than one, means for cancelling credits from said credit storing means, a third switch, means for closing the third switch when any credits are stored in the credit storing means and for opening the third switch when no credits are stored therein, a fourth switch, a fifth switch, means for opening the fourth switch while the motor is operating the credit storing means and means for opening the fifth switch while said operating means for adding one credit is operating said credit storing means, said fourth and fifth switches being connected in series with said source of power.

5. Accumulator apparatus comprising credit storing means, a source of power, a first switch, means for operating said credit storing means to add a pred termined number of credits thereto when said first switch is closed, a second switch, an electrical motor, means providing a driving connection between said motor and the credit storing means, a circuit. for starting the motor which is rendered effective by closure of said second switch, a motor switch connected between the motor and the source of power for stopping the motor when it has operated the credit storing means to add a predetermined number of credits of a predetermined multiple of the number of credits added when said first switch is closed, means for cancelling credits from said credit storing means, a third switch connected to said source of power and means for closing said third switch when any credits are stored in the credit storing means and opening said third switch when no credits are stored therein.

6. Accumulator apparatus comprising credit storing means, a source of power, a first switch, electro-magnetic means including a coil and armature for operating said credit storing means to add a predetermined number of credits thereto when said first switch is closed, a second switch, an electric motor, means providing a driving connection between said motor and the credit storing means, a circuit including a second electro-magnetic means for starting the motor which is rendered effective by closure of said second switch, means for stopping the motor when it has operated the credit storing means to add a predetermined number of credits of a predetermined multiple of the number of credits added when said first switch is closed, means for cancelling credits from said credit storing means, a third switch connected to said source of power and means for closing said third switch when any credits are stored in the credit storing means and for opening the third switch when no credits are stored therein.

7. Accumulator apparatus comprising credit storing means, a source of power, a first switch, electro-magnetic means including a coil and armature for operating said credit storing means to add a predetermined number of credits thereto when said first switch is closed, a second switch, an electric motor, means providing a driving connection between said motor andthe credit storing means, a circuit including a second electromagnetic means for starting the motor which is rendered effective by closure of said second switch, means for stopping the motor when it has operated the credit storing means to add a predetermined number of credits of a predetermined multiple of the number of credits added when said first switch is closed, means for cancelling credits from said credit storing means, a third switch connected to said source of power, means for closin said third switch when any credits are stored in the credit storing means and for opening the third switch when no credits are stored therein, a fourth switch connected to said source of power and means for opening said an electrical motor, means providi s a fourth switch while the motor is operating the credit storing means.

8. Accumulator apparatus comprising credit storing means, a source of power, a first switch, means for operating said credit storing means to add a predetermined number of credits thereto when said first switch is closed, a second switch, an electrical motor, means providing a driving connection between said motor and the credit storing means, a circuit for starting the motor when said second switch is closed, a second circuit for continuing operation of the motor, a pair of motor switches connected between the motor and the source of power in parallel for stopping the motor by de-energization of said second circuit when the motor has operated the credit storing means to add a predetermined number of credits of a predetermined multiple of the number of credits added when said first switch is closed, means for cancelling credits from said credit strong means, a third switch, and means for closing said third switch when any credits are stored in the credit storing means and for opening the third switch when no credits are stored therein.

9. Accumulator apparatus comprising credit storing means, a source of power, a first switch, means for operating said credit storing means to add a predetermined number of credits thereto when said first switch is closed, a second switch, an electrical motor, means providing a driving connection between said motor and the credit storing means, a circuit for starting the motor when said second switch is closed, a second circuit for continuing operation of the motor, a pair of motor switches connected between the motor and a source of power in parallel for stopping the motor by de-energization of said second circuit when the motor has operated the credit storing means to add a predetermined number of credits of a predete'mined multiple of the number of credits added wh n said first switch is closed, means for cancelling credits from said credit storing means, a third switch, means for closin the third switch when any credits are stored in the credit storing for open ing the third switch when no credits are stored therein, a mechanical means for opening and closing at least one of said parallel motor switches and means for operating said independent mechanical means in response to closing of said second switch.

10. Accumulator apparatus comprising credit storing means, a source of power, a first switch, means for operating said credit storing means to add a predetermined number of credits thereto when said first switch is closed, a second switch,

a driving connection between said motor and the credit storing means, a circuit for starting the motor when said second switch is closed, a second circuit for COlltlIlLlill" operation of the motor, a pair of motor switches connected between the motor and a source of power in parallel for stopping the motor by de-energization of said second circuit when the motor has operated the credit storing means to add a predetermined number of credits of a predetermined multiple of the num-- ber of credits added when said first switch is closed, means for cancelling credits from said credit storing means, a third switch, means for closing the third switch when any credits are stored in the credit storing means and for opening the third switch when no credits are stored therein, and mechanical means for opening and 23 closing said parallel motor Switches, said mechanical means being operated in response to operation of said motor.

11. Accumulator apparatus comprising credit storing means, a source of power, a first switch, means for operating said credit storing means to add a predetermined number of credits thereto Whensaid first switch is closed, a second switch, an electrical motor, means providing a driving connection between said motor and the credit storing means, a circuit for starting the motor when said second switch is closed, a second circuit for-continuing operation :of the motor, a pair of motor switches connected between the motor and a source of power in parallel for stopping the motor by de-energization of said second -cirunit when the motor has operated the credit storing means to add a predetermined number of credits of a predetermined multiple :of the number of credits added when said first switch is closed, means for cancelling credits from said credit storing means, a third switch, means for closing the third switch when any credits are stored in the credit storing means and for opening the third switch when no credits are stored therein, and mechanical means for opening and closing .said parallel :motor switches, said mechemical means being operated in predetermined sequence in response to operation of said motor.

12. Accumulator apparatus comprising credit storing means, a source of power, a first switch, means for operating said credit storing means to add a predetermined number of credits thereto when said first switch is closed, a second switch, an electrical motor, means providing a driving connection between said motor and the credit storing means, a first circuit for energizing said credit storing operating means to add said predetermined number of credits thereto when the second switch is closed, a second circuit for starting the motor when said second switch is closed, a motor switch connected between the motor and thesource-of power for stopping the motor when it has operated the credit storing means to add a predetermined number of credits of a predetermined multiple of the number of credits added when said first switch is closed, means for cancelling credits from said credit storing means, a third switch, and means for closing the third switch when any credits are stored in the credit storing means and tor opening the third switch when no credits are stored therein.

13. Accumulator apparatus comprising credit storing means, a source of power, a first switch, electr c-magnetic means including a, coil and armature for operating said credit storing means to add a predetermined number of credits thereto when said first switch is closed, a second switch, an electric motor, means providing a driving connection between said motor and the credit storing means, a first circuit for operating said electro-magnetic means when the second switch is closed to add said predetermined number of credits to the credit storing means, a second circuit including means for energizing the .same for starting the motor after the second switch is opened and the elect-ro-magnetic means has operated, means for stopping the motor when it has operated the credit storing means to add apredetermined number of credits of a predetermined multiple of the number of credits added when said first switch is closed, means for cancelling credits from said credit storing means, a third switch and means for closing the third switch when any credits are stored in the-credit storing means and for opening the third switch when no credits are stored therein.

14. Accumulator apparatus comprising credit storing means, a source of power, a first switch, means for operating said credit storing means to add a predetermined number of credits thereto when said first switch is closed, :a Second switch, means for adding a predetermined number of credits to the credit storing means which is a predetermined multiple of the number :of credits added when the first switch is closed upon closure of the second switch, a third switch, an electrical motor, means providing a driving connection between said motor and the credit storing means, a first circuit for starting the motor which is rendered efiective by closure of said third switch, a motor switch connected between the motor and the source of power for stopping the motor when it has operated the credit storing means to add a predetermined multiple of the number of credits added when said second switch is closed, means for cancelling credits from said credit storing means, a fourth switch and means .for closing the fourth switch when any credits are stored in the credit storing means and for opening the fourth switch when no credits are stored therein.

15. Accumulator apparatus comprising credit storing means, a source of power, a first switch, a first solenoid for operating said credit storing means to add a, predetermined number of credits thereto when said first switch is closed, a second switch, means for adding a predetermined number of credits to the credit storing means which is a predetermined multiple of the number of credits added when the first switch is closed upon closure of the Second switch, a third switch, an electrical motor, means providing a driving connection between said motor and the credit storing means, a first circuit for starting the motor which is rendered efifective by closure of said third switch, a motor switch connected between the motor and the source of power .for stopping the motor when it has operated the credit storing means to add a predetermined multiple of the number of credits added when said second switch .is closed, means for cancelling credits from said credit storing means, .a fourth switch, means for closing the fourth switch when any credits are stored. in the credit storing means and for opening the fourth switch When no credits are stored therein, said means operated by the second switch including a second solenoid and a .fifth switch opened and closed thereby to energize said first switch more than once.

16. Accumulator apparatus comprising credit storing means, a source of power, a first switch, means for operating said credit storing means to add a predetermined number of credits thereto when said first switch is closed, a second switch, a third switch, an electrical motor, means providing a driving connection between said motor and the credit .storing means, a first circuit for starting the motor which is rendered effective by closure of the second switch to add a predetermined number of credits to said credit storing means which is a multiple of the number of credits added when said first switch is closed, a circuit for starting the motor which .is rendered effective by closure of said third switch to add a predetermined number of credits to the credit storing means which is a multiple of the number of credits added by closure of 

